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Are You Sure? Challenging LLMs Leads to Performance Drops in The FlipFlop Experiment

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arxiv 2311.08596 v2 pith:5B7UNC4V submitted 2023-11-14 cs.CL

Are You Sure? Challenging LLMs Leads to Performance Drops in The FlipFlop Experiment

classification cs.CL
keywords llmsmodelsbehaviorflipflopexperimentansweranswersaverage
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The interactive nature of Large Language Models (LLMs) theoretically allows models to refine and improve their answers, yet systematic analysis of the multi-turn behavior of LLMs remains limited. In this paper, we propose the FlipFlop experiment: in the first round of the conversation, an LLM completes a classification task. In a second round, the LLM is challenged with a follow-up phrase like "Are you sure?", offering an opportunity for the model to reflect on its initial answer, and decide whether to confirm or flip its answer. A systematic study of ten LLMs on seven classification tasks reveals that models flip their answers on average 46% of the time and that all models see a deterioration of accuracy between their first and final prediction, with an average drop of 17% (the FlipFlop effect). We conduct finetuning experiments on an open-source LLM and find that finetuning on synthetically created data can mitigate - reducing performance deterioration by 60% - but not resolve sycophantic behavior entirely. The FlipFlop experiment illustrates the universality of sycophantic behavior in LLMs and provides a robust framework to analyze model behavior and evaluate future models.

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Cited by 11 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

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    Across six open-weight LLMs and seven datasets, a speaker-free wrong-answer assertion alone flips 66.5% of initially correct answers, versus 10.3% for a plain re-ask; source labels mainly add a modest increment above ...

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  4. PseudoBench: Measuring How Agentic Auto-Research Fuels Pseudoscience

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    PseudoBench shows current LLM agents produce persuasive pseudoscientific reports with near-zero refusal rates and at most 27.4% resistance.

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    AI sycophancy is a broad family of behaviors split by target (beliefs vs. traits) and style (explicit vs. implicit), with experts agreeing it is a problem but disagreeing on which actions qualify.

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